EP3791084A1 - Ensemble à friction pour système de frein à disques apte à filtrer une phase gazeuse issue de la friction d'une garniture - Google Patents
Ensemble à friction pour système de frein à disques apte à filtrer une phase gazeuse issue de la friction d'une garnitureInfo
- Publication number
- EP3791084A1 EP3791084A1 EP19726063.1A EP19726063A EP3791084A1 EP 3791084 A1 EP3791084 A1 EP 3791084A1 EP 19726063 A EP19726063 A EP 19726063A EP 3791084 A1 EP3791084 A1 EP 3791084A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- friction
- lining
- assembly
- friction assembly
- brake system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000007792 gaseous phase Substances 0.000 title description 16
- 239000007789 gas Substances 0.000 claims abstract description 59
- 238000001914 filtration Methods 0.000 claims abstract description 46
- 238000004891 communication Methods 0.000 claims abstract description 17
- 239000002783 friction material Substances 0.000 claims abstract description 12
- 239000002245 particle Substances 0.000 claims description 29
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 21
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 12
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 8
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 claims description 8
- BGTOWKSIORTVQH-UHFFFAOYSA-N cyclopentanone Chemical compound O=C1CCCC1 BGTOWKSIORTVQH-UHFFFAOYSA-N 0.000 claims description 8
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 claims description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000003507 refrigerant Substances 0.000 claims description 6
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 150000001336 alkenes Chemical class 0.000 claims description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 4
- 239000001569 carbon dioxide Substances 0.000 claims description 4
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 claims description 3
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 claims description 3
- 229910021536 Zeolite Inorganic materials 0.000 claims description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 239000010457 zeolite Substances 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 1
- 239000007787 solid Substances 0.000 description 14
- 238000005096 rolling process Methods 0.000 description 9
- 239000012071 phase Substances 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- KPAMAAOTLJSEAR-UHFFFAOYSA-N [N].O=C=O Chemical compound [N].O=C=O KPAMAAOTLJSEAR-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000000763 evoking effect Effects 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 230000014616 translation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/0031—Devices for retaining friction material debris, e.g. dust collectors or filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
- B01D53/0415—Beds in cartridges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
- F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/104—Alumina
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
- B01D2253/108—Zeolites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/402—Dinitrogen oxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/404—Nitrogen oxides other than dinitrogen oxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/504—Carbon dioxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/702—Hydrocarbons
- B01D2257/7022—Aliphatic hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/702—Hydrocarbons
- B01D2257/7022—Aliphatic hydrocarbons
- B01D2257/7025—Methane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/45—Gas separation or purification devices adapted for specific applications
- B01D2259/4566—Gas separation or purification devices adapted for specific applications for use in transportation means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D2069/004—Profiled friction surfaces, e.g. grooves, dimples
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/20—Capture or disposal of greenhouse gases of methane
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
Definitions
- Friction assembly for disc brake system capable of filtering a gaseous phase resulting from the friction of a packing
- the present invention relates to vehicles, especially automobiles and also railway rolling stock. More specifically, the invention relates to the braking of vehicles and railway rolling stock. The invention further relates to brake pads for friction assemblies for disc brake systems for such vehicles and railway rolling stock.
- the invention can be implemented both in drum brake systems and in brake systems with soles, for example in the railway sector.
- the invention can also be implemented in industrial brakes, such as for wind turbine or elevator.
- the vehicle can be of any type and can in particular be a car, a truck, a tractor, a coach or a bus.
- railway rolling stock can be a train, a tram or even a metropolitan.
- the invention relates to non-polluting friction assemblies for a disc brake system.
- the invention thus relates to the fight against pollutant emissions during friction due to braking.
- a railway vehicle or rolling stock almost always includes a braking system.
- the braking system may in particular be a disk brake system.
- the braking system then comprises a disc integral with a wheel or an axle of the vehicle or railway rolling stock.
- the wheel, or axle rotates to allow the vehicle or railway rolling stock to move, the disk also rotates.
- the disc brake system comprises disk friction means.
- the friction means comprise in particular two flanges which each carry a lining which comprises a friction material.
- the friction material is configured to engage the disk.
- the two flanges bearing the friction linings are disposed on either side of the disc so as to take it in pincers when the brake system is actuated.
- a suction device particles from braking in the braking system.
- the suction device is intended to suck up the particles of the braking shortly after the emission of the latter.
- These devices are generally relatively efficient. However, they can not make the disc brake systems completely non-polluting.
- An object of the invention is to provide a friction assembly for a disc brake system even less polluting.
- the invention provides a friction assembly for a disk brake system, comprising:
- a friction material lining having a friction face, a fixing face opposite to the friction face and a collection groove open on the friction face
- a vacuum source configured to create a vacuum in the collection groove and the hole
- the friction assembly comprises a gas filtering device, in pneumatic communication with the collecting groove and the hole, capable of sensing gases from the friction of the lining and coming from the collecting groove.
- the gas filtration device makes it possible to filter a gaseous phase produced during the friction of the lining on the disk.
- the gas filtration device makes it possible to capture gases included in this gaseous phase.
- the inventors have found that during braking, the temperature at the interface between the friction lining and the disc is often at least equal to 300 ° C. and that the atmosphere close to this zone is oxidizing. Thus, beyond the solid particles emitted, a gaseous phase is also produced during braking. Part of this gas phase remains in the form of gas and can pollute the environment of the vehicle. Another part of this gas phase condenses in the vehicle environment, which can foul parts of the vehicle, or condense outside the vehicle, which generates a solid pollution in substantially nano-particulate form.
- the friction assembly according to the invention makes it possible to collect polluting gases by filtering the gaseous phase emitted during braking and thus to prevent these gases from being released into the atmosphere. Indeed, these gases gain the collection groove through the hole of the sole and are captured by the gas filtration device.
- the gas filtration device can in particular be a filter that lets air pass. The invention thus makes it possible to reduce the pollution generated by the actuation of a disk brake system which comprises the friction assembly as described above. The friction assembly according to the invention is therefore less polluting.
- the gas filtration device comprises activated carbon; the activated carbon can thus capture gases from the friction while allowing air to pass;
- activated carbon may be activated physically or chemically; ideally, the activated carbon comprises a portion of physically activated charcoal and a portion of chemically activated charcoal;
- the gas filtration device comprises a mass of zeolite
- the gas filtration device comprises a mass of silica
- the gas filtration device comprises a mass of aluminas
- the gas filtration device comprises a canister
- the gas filtration device is capable of capturing carbon dioxide gas; the gas filtration device is capable of capturing methane gas;
- the gas filtration device is able to capture gaseous nitrogen oxide;
- the gas filtering device is capable of capturing nitrogen dioxide gas;
- the gas filtration device is capable of capturing gaseous ethane;
- the gas filtration device is able to capture gaseous phenol
- the gas filtration device is capable of capturing a gaseous hexanol
- the gas filtration device is capable of capturing gaseous heptane
- the gas filtration device is capable of capturing gaseous cyclopentanone; the gas filtration device is capable of capturing a gaseous alkene; the friction assembly is therefore less polluting;
- the friction assembly comprises a particulate filter, in pneumatic communication with the collection groove and the hole, configured to filter air from the collection groove;
- the particle filter can capture solid particles which have a macroscopic and microscopic dimension;
- the particulate filter is pneumatically disposed between the collection groove and the filter device; thus, the purified air of the particles having a macroscopic and microscopic size gains the filtration device, which makes it possible to protect the integrity of the filtration device;
- the friction assembly comprises means for condensing the gases resulting from the friction of the lining; the gases can thus be captured in the liquid state, even solid;
- the means for condensing the gases resulting from the friction of the lining comprise a plate heat exchanger
- the plate heat exchanger is able to be supplied with a refrigerant
- the refrigerant is a refrigerant for conditioning a vehicle comprising the friction assembly
- the friction assembly is connected to an air conditioning system of the vehicle
- the means for condensing the gases resulting from the friction of the lining are pneumatically arranged between the collecting groove and the particulate filter;
- the lining comprises a rear edge, located on the side where the disk is able to exit an interface with the wafer when the disk rotates in a direction of travel of the vehicle, and a front edge, the collection groove being arranged in the vicinity the back edge; the capture of gases is therefore all the more effective;
- the collection groove is disposed at a distance from the rear edge of less than or equal to 5 millimeters, 10 millimeters, 15 millimeters or 20 millimeters.
- the invention also provides a disk brake system comprising:
- a friction assembly as described above, comprising two friction material linings and two flanges respectively supporting one of the two linings, and
- the invention provides a vehicle comprising a disc brake system as described above.
- FIG. 1 represents in perspective a disk brake system comprising a friction assembly according to one embodiment of the invention
- FIG. 2 represents this disc brake system, seen from an axis perpendicular to a main plane of a disc of the disc brake system
- FIG. 3 is a perspective view of a brake pad of the disk brake system
- FIG. 4 schematically shows a particular arrangement of a particle filter and a filtering device of the brake system according to a variant.
- the terms “substantially”, “about”, etc. mean that a slight variation from the nominal value considered is possible, especially a low percentage, in particular within 10%.
- FIGS. 1 and 2 show a disc brake system 19 according to the invention for a vehicle.
- the vehicle is a motor vehicle, in this case a light car.
- the invention can be implemented for any type of vehicle, such as a tractor for semitrailer, a bus, a bus or an agricultural tractor, or for any type of railway rolling stock, such as 'a locomotive or wagon of a train for the transport of humans, goods, a metropolitan or a tramway.
- the invention can also be implemented for industrial brakes, for example for wind turbines or lifts.
- the disc brake system 19 comprises a disc 9, of axis A integral with a wheel of the vehicle.
- the axis A thus extends perpendicular to the disk 9 and passes through a center of the disk 9.
- the disc 9 has a side face 9A and an opposite side face 9B.
- the side faces 9A, 9B are perpendicular to the axis A.
- the disc 9 is also connected to a transmission mechanism, for example by means in particular of a hub, itself connected to a motor of the vehicle.
- the transmission mechanism makes it possible transmit to the wheel of the vehicle, through the disc 9, a rotational movement about the axis A in order to move the vehicle.
- the disc brake system 19 comprises a stirrup 5 which encloses, so as to sandwich, a portion of the disc 9.
- the stirrup 5 is in the form of a main body 50 which has a generally U-shaped so as to grip the disc 9.
- the main body 50 has a cavity for housing a piston 55.
- the stirrup 5 also has two fingers 51, 52.
- the piston 55 is capable of exerting a force PF in a direction A2 marked in FIG. 1 and which is parallel to the axis A of the disc and this, when the disc brake system 19 is actuated by a driver of the vehicle.
- Figure 1 there is shown a direction of rotation FW disk 9 which corresponds to a forward movement of the vehicle. There is also shown a tangential direction T on a circumference of the disk 9.
- a back side and an opposite front side are also defined.
- the rear side corresponds to the side where the disc 9 leaves the interface with the stirrup 5 when the disc 9 rotates in the direction of advance of the vehicle.
- the front side is the opposite side and corresponds to the side where the disc 9 enters the interface with the stirrup 5 when the disc 9 rotates in the direction of advance of the vehicle.
- R a direction is defined which goes from the inside to the outside.
- the disk brake system 19 includes a caliper support 6 which is attached to a vehicle member.
- This member may in particular be a suspension arm of the vehicle.
- the stirrup support 6 comprises two bridges 61, 61A disposed at two longitudinal ends respectively rear and front of the stirrup 5 and a connecting arc 63 which connects the two bridges 61, 61A.
- the bridge 61 is thus a rear bridge and the bridge 61 A is a front bridge.
- the disc brake system 19 also comprises a friction assembly 19A which comprises in particular two brake pads 10A, 10B housed in the stirrup 5.
- the two brake pads 10A, 10B are arranged on either side of the disc 9
- the brake pad 10A is disposed opposite the lateral face 9A of the disc 9.
- the brake pad 10B is arranged facing the lateral face 9B of the disc 9.
- the two brake pads 10A, 10B are arranged symmetrically. relative to a plane comprising the disk 9 and perpendicular to the axis A of the disk 9.
- the piston 55 of the stirrup 5 is arranged to exert the force PF on the brake pad 10A so that the two plates 10A, 10B come into contact with the disc 9 so as to brake the vehicle when the disc brake system 19 is operated by a driver of the vehicle.
- the stirrup 5 is mounted "floating" in the stirrup support 6, along the axis A.
- the stirrup 5 can move parallel to the axis A particular to compensate for progressive wear of platelets 10A, 10B.
- the stirrup 5 is held integral with the stirrup support 6 according to the other translations and potential rotations.
- the floating assembly is usually carried out by means of sliding columns along the axis A.
- the brake pads 10A, 10B have identical structures. They each comprise a respective sole 20A, 20B which supports a respective friction lining 22A, 22B. Only the brake pad 10A is shown in Figure 3, however, Figure 10B is similar.
- the flanges 20A, 20B are in the form of a solid metal plate and of substantially constant thickness. This thickness may especially be between 3 and 5 millimeters.
- the general facial shape of the flanges 20A, 20B is rectangular, with however a curvature which follows the curvature of the lateral face 9A, 9B of the disc 9 on which the friction linings 22A, 22B will exert their effort.
- the flanges 20A, 20B also comprise means for attachment to the main body 55 of the caliper 5.
- these means comprise a rear arm 24 and a front arm 26 which make it possible to fix the sole 20A, 20B to the main body 55 of the stirrup 5 by means of hooks 28.
- the flanges 20A, 20B have an attachment face to which is fixed the respective friction lining 22A, 22B.
- the friction linings 22A, 22B are in the form of a friction material body adapted to come into contact with the lateral face 9A of the disc 9 in order to brake the vehicle.
- the friction material is sometimes called "ferodo".
- the friction linings 22A, 22B therefore comprise a respective friction face 30A, 30B intended to come into direct contact with the lateral face 9A, 9B of the disc 9.
- the friction linings 22A, 22B also comprise a fastening face 32A, 32B , respectively, opposite the friction face 30A, 30B, and fixed directly to the attachment face of the sole 20.
- the friction linings 22A, 22B have a trailing edge 34 and an opposite leading edge 36.
- the friction linings 22A, 22B also have an inner edge 38 and an outer edge 39 radially.
- braking particles correspond to particles of the friction material which are detached from the friction linings 22A, 22B by abrasion with the lateral faces 9A, 9B of the disc 9 as well as particles, in the solid state, which come off. 9.
- a gaseous phase is emitted during this friction during braking.
- This gaseous phase comprises in particular at least one of the following compounds according to the composition of the friction lining, the braking temperature and the atmospheric conditions in which the braking takes place: carbon dioxide, methane, nitrogen oxide, carbon dioxide nitrogen, ethane, phenol, hexanol, heptane, cyclopentanone and alkene.
- This gaseous phase also comprises other compounds in much smaller amounts such as styrene, for example.
- this gas phase condenses, in or out of the vehicle, it causes the release of highly volatile nanoparticles.
- These solid particles and this gaseous phase are polluting and are harmful to human health and can also damage parts of the vehicle or dirty them.
- the part of this gaseous phase that does not condense generates atmospheric pollution, as does the one that condenses, and then forms a cloud of nanoparticles.
- the friction assembly 19 of the disc brake system 19 comprises depollution means described below.
- the friction linings 22A, 22B have a respective collecting groove 3A, 3B.
- the collecting grooves 3A, 3B are open on the respective friction faces 30A, 30B and are arranged near the respective rear edge 34 of the friction linings 22A, 22B.
- the capture of solid braking particles and braking gases is more effective than the collecting grooves 3A, 3B are disposed near the rear edge 34 of the friction liners 30A, 30B.
- the collecting grooves 3A, 3B are disposed at a distance from the rear edge 34 less than or equal to 5 millimeters, 10 millimeters, 15 millimeters, 20 millimeters, 30 millimeters or 50 millimeters.
- the collecting grooves 3A, 3B are unique, substantially rectilinear and continuous. They are of constant width. In addition, the collecting grooves 3 are directly cut in the friction material and this, to the flanges 20A, 20B.
- the collecting grooves 3 A, 3 B extend further between one end outlet 31 and a blind end 33.
- the open end 31 is disposed on the inner edge 38 of the friction lining 22A, 22B.
- the blind end 33 is disposed near the outer edge 39.
- the open end 31 may also be disposed on the outer edge 39.
- the blind end 33 may also be disposed near the inner edge 38.
- the flanges 20A, 20B each have a respective hole 17A, 17B which opens into the collecting groove 3A, 3B.
- the holes 17A, 17B are substantially facing a blind end 33 respectively.
- the holes 17 may be more generally disposed near the blind end 33.
- the hole 17A is thus in pneumatic communication with the collecting groove 3A.
- the hole 17B is in pneumatic communication with the collecting groove 3B.
- the disc brake system 19 comprises two flexible hoses 40A, 40B.
- the hose 40 A is connected to the hole 17 A of the sole 20 A of the brake pad 10A.
- This hose 40A passes through the main body 55 of the stirrup 5.
- the main body 55 of the stirrup 5 comprises a channel 57 through.
- the hose 40B is connected to the hole 17B of the sole 20B of the brake pad 10B.
- the flexible pipe 40B bypasses the main body 55 of the stirrup 5.
- the flexible pipe 40B can also pass through the main body 55 of the stirrup 5, via a dedicated channel.
- the hose 40A is in pneumatic communication with the hole 17A and the collecting groove 3A.
- the hose 40B is in pneumatic communication with the hole 17B and the collecting groove 3B.
- the friction assembly 19A further comprises a pollution control device 60 in pneumatic communication with the hoses 17A, 17B as shown in Figure 2.
- the pollution control device 60 has the function of limiting the pollution emitted during braking.
- the pollution control device 60 thus comprises a particulate filter 62, a filtration device 64 and a suction source 66 which is for example in the form of a turbine.
- the particulate filter 62 is in pneumatic communication with the holes 17A, 17B and thus the collecting grooves 3A, 3B by the flexible hoses 40A, 40B.
- the particle filter 62 is in pneumatic communication with the filtration device 64 by means of a flexible hose 68.
- the filtration device 64 is in pneumatic communication with the suction source 66 by means of a flexible hose 70
- the particle filter 62 is pneumatically disposed between the collecting grooves 3A, 3B and the filtration device 64.
- all the elements evoked are in pneumatic communications.
- the filtration device 64 is in pneumatic communication with the holes 17A, 17B and the collecting grooves 3A, 3B.
- the suction source 66 is thus configured to create depression in the collection grooves 3A, 3B and in the holes 17A, 17B.
- the particulate filter 62 is configured to filter air from the collecting grooves 3A, 3B and having passed through the holes 17A, 17B and the flexible pipes 40A, 40B of the solid particles having micrometric or millimeter dimensions, or even centimeter.
- the function of the filtration device 64 is to capture gases included in the gas phase resulting from the friction of the brake linings 22A, 22B on the disk 9, and having gained the collection grooves 3A, 3B, through the holes 17A. , 17B, the hoses 40A, 40B and the particulate filter 62.
- the filter device 64 preferably comprises activated carbon which advantageously comprises a portion of physically activated carbon and a portion of chemically active carbon.
- the filtration device 64 may also comprise a canister.
- the canister and activated carbon are configured to capture at least one of the following gaseous compounds: carbon dioxide, methane, nitrogen oxide, nitrogen dioxide, ethane, phenol, hexanol, heptane, cyclopentanone, and the like. alkene.
- the depollution device 60 comprises means for condensing gases resulting from the friction of the linings 22A, 22B.
- These means advantageously comprise a plate heat exchanger which can be powered by a refrigerant which is a refrigerant of an air conditioning system of the vehicle.
- the pollution control device 60 is able to condense gases emitted during braking and to store them in the liquid state or even solid state.
- the means for condensing the gases resulting from the friction of the linings 22A, 22B are pneumatically arranged between the collecting groove 3A, 3B and the particle filter 62. Thus, only the gaseous phase reaches the filtration device 64.
- the vacuum source 66 is actuated and the gaseous phase and the solid particles emitted from the linings 22A, 22B and the disk 9 win the collection grooves 3A, 3B, the holes 17A, 17B, the flexible pipes 40A, 40B and the particle filter 62 where the solid particles are captured. Then, the gaseous phase continues its course in the pipe 68 to the filtration device 64 where it is filtered. Thus gases of the gas phase are captured. Thus, the filtered gaseous phase can be released into the atmosphere.
- the friction assembly 19A and consequently the brake system 19 are therefore less polluting.
- the friction assembly 19A may in particular comprise only the filtration device 64 and not the particulate filter 62.
- particulate filter 62, the filter device 64 and the vacuum source 66 are common for the brake pads 10A, 10B. It will also be possible to provide a particle filter 62, a filtration device 64 and a specific vacuum source 66 for the brake pad 10A and for the brake pad 10B.
- FIG. 4 shows a possible and more compact arrangement than that previously illustrated. This figure shows using the arrow F a direction of the gas phase from the collection groove 3 A, 3B.
- the particle filter 62 and the filtration device 64 are in the form of a thin layer of material.
- the particle filter 62 and the filtration device 64 are thus arranged one on the other and in addition on a support layer 100.
- the filtration device 64 is disposed between the support layer 100 and the particle filter 62. .
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Braking Arrangements (AREA)
- Separation Of Gases By Adsorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1853966A FR3081037B1 (fr) | 2018-05-09 | 2018-05-09 | Ensemble a friction pour systeme de frein a disques apte a filtrer une phase gazeuse issue de la friction d'une garniture |
PCT/FR2019/050968 WO2019215402A1 (fr) | 2018-05-09 | 2019-04-24 | Ensemble à friction pour système de frein à disques apte à filtrer une phase gazeuse issue de la friction d'une garniture |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3791084A1 true EP3791084A1 (fr) | 2021-03-17 |
EP3791084B1 EP3791084B1 (fr) | 2023-10-25 |
Family
ID=63036117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19726063.1A Active EP3791084B1 (fr) | 2018-05-09 | 2019-04-24 | Ensemble à friction pour système de frein à disques apte à filtrer une phase gazeuse issue de la friction d'une garniture |
Country Status (9)
Country | Link |
---|---|
US (1) | US11940025B2 (fr) |
EP (1) | EP3791084B1 (fr) |
JP (1) | JP7379777B2 (fr) |
KR (1) | KR102670501B1 (fr) |
CN (1) | CN112313424B (fr) |
CA (1) | CA3099871A1 (fr) |
FR (1) | FR3081037B1 (fr) |
SG (1) | SG11202011089VA (fr) |
WO (1) | WO2019215402A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3088393B1 (fr) * | 2018-11-08 | 2020-12-11 | Tallano Tech | Systeme d'aspiration des particules de freinage a anticipation de commande |
DE102021126026A1 (de) * | 2021-10-07 | 2023-04-13 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Scheibenbremse und Bremsbelag für eine Scheibenbremse |
FR3142787A1 (fr) * | 2022-12-02 | 2024-06-07 | Tallano Technologie | Perçage incliné d’entrée d’air |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5162053A (en) * | 1987-09-24 | 1992-11-10 | Kowalski Jr Walter J | Vehicular brake material collection system |
US5603215A (en) | 1995-03-23 | 1997-02-18 | Engelhard Corporation | Method and apparatus for treatment of exhaust streams |
DE19846887C2 (de) * | 1998-10-13 | 2000-11-30 | Wolfgang Foesel | Bremsanlage für ein Kraftfahrzeug |
US6749655B2 (en) | 2002-04-17 | 2004-06-15 | Speedline Technologies, Inc. | Filtration of flux contaminants |
JP4441531B2 (ja) | 2003-03-12 | 2010-03-31 | スリーケイ テクノロジーズ インコーポレイテッド | 道路から汚染物質を除去するためのシステムおよび方法 |
DE20308576U1 (de) * | 2003-05-30 | 2003-12-18 | Cramer Von Clausbruch, Dirk | Vorrichtung für eine Scheibenbremse als Radbremse bei einem Personenkraftwagen oder einem Nutzfahrzeug |
US8025132B2 (en) * | 2004-03-09 | 2011-09-27 | Jeffrey Krantz | System and method for removing brake dust and other pollutants |
US20060230729A1 (en) * | 2004-12-28 | 2006-10-19 | Tabrizi Hossein E | Method and apparatus for capturing/collecting airborne hazardous particles generated by a moving vehicle |
DE202006016661U1 (de) | 2006-10-27 | 2008-03-06 | Mann+Hummel Gmbh | Filteranordnung für Bremsstaubrückhalteanlagen |
JP2010221878A (ja) * | 2009-03-24 | 2010-10-07 | Toyota Motor Corp | 摩擦装置 |
US8262785B2 (en) * | 2009-07-30 | 2012-09-11 | Mann & Hummel Gmbh | Hydrocarbon adsorption trap for an engine air intake tract |
GB2492858C2 (en) * | 2011-12-06 | 2014-12-10 | Trevor Michael Mennie | Brake system |
PL225371B1 (pl) * | 2012-10-26 | 2017-04-28 | Przemysłowy Inst Motoryzacji | Urządzenie do redukcji emisji pyłów powstających podczas hamowania pojazdu wyposażonego w hamulec bębnowy |
US9198300B2 (en) | 2014-01-23 | 2015-11-24 | Illinois Tool Works Inc. | Flux management system and method for a wave solder machine |
FR3034831B1 (fr) * | 2015-04-10 | 2018-04-27 | Romuald Jean Jacques Vigier | Dispositif antipollution pour frein a disque |
JP6838856B2 (ja) | 2015-12-03 | 2021-03-03 | セントラルフィルター工業株式会社 | ガスフィルターエレメント |
CN205402964U (zh) | 2016-03-04 | 2016-07-27 | 北京创新纪技术开发有限公司 | 一种多级过滤空气净化扇 |
FR3057040B1 (fr) * | 2016-10-05 | 2019-05-03 | Tallano Technologie | Plaquette de frein et ensemble de frein a captation de particules |
DE102017008421A1 (de) * | 2017-09-08 | 2019-03-14 | Mann+Hummel Gmbh | Bremsstaubpartikelfilter sowie Scheibenbremsenanordnung mit einem Bremsstaubpartikelfilter |
FR3076876B1 (fr) * | 2018-01-17 | 2020-01-03 | Tallano Technologie | Plaquette de frein pour ensemble de frein a disque comprenant une rainure d'aspiration en zone avant et une zone avant chanfreinee |
DE102018208631A1 (de) * | 2018-05-30 | 2019-12-05 | Bayerische Motoren Werke Aktiengesellschaft | Vorrichtung und Reibbremse zur Reduzierung der Menge an Feinstaub |
-
2018
- 2018-05-09 FR FR1853966A patent/FR3081037B1/fr active Active
-
2019
- 2019-04-24 JP JP2020562674A patent/JP7379777B2/ja active Active
- 2019-04-24 CA CA3099871A patent/CA3099871A1/fr active Pending
- 2019-04-24 EP EP19726063.1A patent/EP3791084B1/fr active Active
- 2019-04-24 US US17/053,464 patent/US11940025B2/en active Active
- 2019-04-24 KR KR1020207032597A patent/KR102670501B1/ko active IP Right Grant
- 2019-04-24 CN CN201980041555.1A patent/CN112313424B/zh active Active
- 2019-04-24 SG SG11202011089VA patent/SG11202011089VA/en unknown
- 2019-04-24 WO PCT/FR2019/050968 patent/WO2019215402A1/fr unknown
Also Published As
Publication number | Publication date |
---|---|
US20210239168A1 (en) | 2021-08-05 |
US11940025B2 (en) | 2024-03-26 |
EP3791084B1 (fr) | 2023-10-25 |
CA3099871A1 (fr) | 2019-11-14 |
KR102670501B1 (ko) | 2024-05-30 |
CN112313424A (zh) | 2021-02-02 |
JP7379777B2 (ja) | 2023-11-15 |
FR3081037B1 (fr) | 2021-12-03 |
WO2019215402A1 (fr) | 2019-11-14 |
FR3081037A1 (fr) | 2019-11-15 |
JP2021523328A (ja) | 2021-09-02 |
CN112313424B (zh) | 2022-11-22 |
KR20210005882A (ko) | 2021-01-15 |
SG11202011089VA (en) | 2020-12-30 |
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